WO2023211037A1

WO2023211037A1 - Method and device for resource allocation in wireless communication system

Info

Publication number: WO2023211037A1
Application number: PCT/KR2023/005219
Authority: WO
Inventors: 반충상; 유향선; 김기준; 고현수; 양석철; 심재남
Original assignee: 엘지전자 주식회사
Priority date: 2022-04-28
Filing date: 2023-04-18
Publication date: 2023-11-02

Abstract

According to various embodiments of the present disclosure, provided is a method performed by an electronic device comprising a first device and a second device in a wireless communication system. The method may comprise: a step in which the first device receives first semi-static time division duplex (TDD) resource allocation information including a plurality of first flexible resources not allocated to uplink (UL) or downlink (DL) from a base station; a step in which the first device receives TDD UL-DL additional configuration information from the base station; a step in which the second device determines second semi-static TDD resource allocation information by updating one or more of the plurality of first flexible resources in the first semi-static TDD resource allocation information on the basis of the TDD UL-DL additional configuration information; and a step in which the second device forwards a signal from the base station to a user equipment (UE), or forwards a signal from the UE to the base station on the basis of the second semi-static TDD resource allocation information.

Description

Resource allocation method and device in wireless communication system

This disclosure relates to wireless communication systems. Specifically, the present disclosure relates to a method and apparatus for resource allocation in a wireless communication system.

Wireless access systems are being widely deployed to provide various types of communication services such as voice and data. In general, a wireless access system is a multiple access system that can support communication with multiple users by sharing available system resources (bandwidth, transmission power, etc.). Examples of multiple access systems include code division multiple access (CDMA) systems, frequency division multiple access (FDMA) systems, time division multiple access (TDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, and single carrier frequency (SC-FDMA) systems. division multiple access) systems, etc.

In particular, as many communication devices require large communication capacity, enhanced mobile broadband (eMBB) communication technology is being proposed compared to the existing radio access technology (RAT). In addition, a communication system that takes into account reliability and latency-sensitive services/UE (user equipment) as well as mMTC (massive machine type communications), which connects multiple devices and objects to provide a variety of services anytime and anywhere, is being proposed. . Various technological configurations are being proposed for this purpose.

In order to solve the above-mentioned problems, the present disclosure provides a method and device for resource allocation in a wireless communication system.

In order to solve the above-described problem, the present disclosure proposes a method of judging/determining DL/UL information in the semi-static TDD flexible resource of the RU based on the dynamic TDD DL/UL information of the MT.

In order to solve the above-described problem, the present disclosure proposes a method for judging/determining DL/UL information in the semi-static TDD flexible resource of the RU when the dynamic TDD DL/UL information of the MT is not set/indicated. .

The technical problems to be achieved by this disclosure are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by those skilled in the art from the description below. You will be able to.

In a method of operating an electronic device in a wireless communication system according to an embodiment of the present disclosure, the electronic device includes a first device and a second device, and receives UL (uplink) or DL (DL) from a base station by the first device. Receiving first semi-static TDD resource allocation information (semi-static time division duplex resource allocation information) including a plurality of first flexible resources that are not allocated to the downlink, to the first device Receiving TDD UL-DL additional configuration information from a base station, by the second device, based on the TDD UL-DL additional configuration information, the plurality of first devices in the first semi-static TDD resource allocation information determining second semi-static TDD resource allocation information by updating one or more of the flexible resources and, by the second device, based on the second semi-static TDD resource allocation information, a signal from the base station It may include forwarding to a terminal (user equipment, UE), or forwarding a signal from the terminal to the base station.

The TDD UL-DL additional configuration information includes dynamic TDD UL-DL configuration information (dynamic TDD uplink-downlink configuration information) to be applied to the first device, and the TDD UL-DL additional configuration information is applied to the first device. Alternatively, the TDD UL-DL additional configuration information may be received through scheduling information for the first device.

The second semi-static TDD resource allocation information includes information on one or more second flexible resources, the one or more second flexible resources are propagation delay between UL and DL, and the one or more second flexible resources Forwarding of the signal by the second device may not be performed.

The TDD UL-DL additional configuration information includes dynamic TDD UL-DL configuration information (dynamic TDD uplink-downlink configuration information) to be applied to the first device, and the second semi-static TDD resource allocation information includes one or more first devices. 2 Contains information on flexible resources, wherein the one or more second flexible resources are propagation delay between UL and DL, and forwarding of the signal by the second device is not performed in the one or more second flexible resources. You can.

One or more of the plurality of first flexible resources in the first semi-static TDD resource allocation information is updated to be the same as one or more resources in the TDD UL-DL additional configuration information, so that the second semi-static TDD resource allocation information can be decided.

Among the plurality of first flexible resources, resources that do not correspond to the TDD UL-DL additional configuration information may be maintained as second flexible resources in the second semi-static TDD resource allocation information.

The TDD UL-DL additional configuration information includes only UL or DL information for a specific symbol included in a specific slot among the plurality of first flexible resources, and when the specific symbol is UL, the plurality of first flexible resources The second semi-static TDD resource allocation information is determined by updating all first flexible resources included in the specific slot among resources to UL, and when the specific symbol is DL, the plurality of first flexible resources The second semi-static TDD resource allocation information can be determined by updating all first flexible resources included in the specific slot to DL.

The TDD UL-DL additional configuration information includes UL or DL information for the first symbol included in the first slot among the plurality of first flexible resources and a second slot adjacent to the first slot among the plurality of first flexible resources. Contains UL or DL information for the second symbol included in, and when the first symbol and the second symbol are UL, between the first symbol and the second symbol among the plurality of first flexible resources The second semi-static TDD resource allocation information is determined by updating all of the first flexible resources to UL, and when the first symbol and the second symbol are DL, the first flexible resources of the plurality of first flexible resources are determined. The second semi-static TDD resource allocation information can be determined by updating all first flexible resources between the first symbol and the second symbol to DL.

If the second semi-static TDD resource allocation information to be applied to the second device is different from the third semi-static TDD resource allocation information to be applied to the first device, based on the third semi-static TDD resource allocation information , transmission and reception of signals by the first device, and transmission and reception of signals by the second device may be performed.

If the second semi-static TDD resource allocation information to be applied to the second device is different from the third semi-static TDD resource allocation information to be applied to the first device, based on the second semi-static TDD resource allocation information Thus, transmission and reception of signals by the first device and transmission and reception of signals by the second device can be performed.

In a method of operating a base station in a wireless communication system according to an embodiment of the present disclosure, an electronic device including a first device and a second device that is not assigned to the first device as UL (uplink) or DL (downlink) Transmitting first semi-static time division duplex resource allocation information including a plurality of first flexible resources, TDD UL-DL additional configuration to the first device Transmitting information and forwarding and receiving a signal from a user equipment (UE) based on second semi-static TDD resource allocation information from the second device, or to be forwarded to the terminal Transmitting a signal to the second device, wherein the second semi-static TDD resource allocation information is based on the TDD UL-DL additional configuration information and includes the plurality of information in the first semi-static TDD resource allocation information. One or more of the first flexible resources may be updated information.

The TDD UL-DL additional configuration information is dynamic TDD UL-DL configuration information (dynamic TDD uplink-downlink configuration information) to be applied to the first device, and the TDD UL-DL additional configuration information is used to control the first device. Information may be received, or the TDD UL-DL additional configuration information may be received through scheduling information for the first device.

In an electronic device in a communication system according to an embodiment of the present disclosure, a first device including a first transceiver, a second device including a second transceiver, at least one processor, and operable to operate on the at least one processor. at least one memory accessible and storing instructions that, when executed by the at least one processor, perform operations, the operations according to any one of claims 1 to 10. All steps of the method may be included.

In a communication system according to an embodiment of the present disclosure, in a base station, a transceiver, at least one processor, and operably connectable to the at least one processor, instructions to perform operations when executed by the at least one processor It includes at least one memory that stores (instructions), and the operations include:

It may include all steps of the method according to any one of claims 11 to 16.

A control device for controlling an electronic device in a communication system according to an embodiment of the present disclosure, comprising at least one processor and at least one memory operably connected to the at least one processor, the at least one Memories store instructions for performing operations, based on execution by said at least one processor, said operations comprising all steps of the method according to any one of claims 1 to 10. It can be included.

In one or more non-transitory computer-readable media storing one or more instructions according to an embodiment of the present disclosure, the one or more instructions perform operations based on execution by one or more processors. And the operations may include all steps of the method according to any one of claims 1 to 10.

According to the present disclosure, when using a dynamic TDD DL/UL allocation method within the coverage of NCR, adaptive beam operation and efficient interference management are possible.

According to the present disclosure, the propagation delay between RU-UE links can be corrected by the RU turning off the semi-static TDD flexible resources of the MT.

According to the present disclosure, the propagation delay between RU-UE links can be corrected by the RU turning off the dynamic TDD flexible resources of the MT.

According to the present disclosure, the propagation delay between RU-UE links can be corrected by the RU turning off resources that are not scheduled as separate DL/UL of the MT.

According to the present disclosure, even when the dynamic TDD DL/UL information of the MT is not set/indicated, the RU can judge/determine the DL/UL information in the semi-static TDD flexible resource.

The drawings attached below are intended to aid understanding of the present disclosure and may provide embodiments of the present disclosure along with a detailed description. However, the technical features of the present disclosure are not limited to specific drawings, and the features disclosed in each drawing may be combined to form a new embodiment. Reference numerals in each drawing may refer to structural elements.

Figure 1 is a diagram showing an example of physical channels and general signal transmission used in a 3GPP system.

Figure 2 is a diagram showing an example of the structure of a radio frame used in NR.

Figure 3 is a diagram showing an example of the slot structure of an NR frame.

Figure 4 is a diagram showing an example of the structure of a self-contained slot.

5 to 8 are diagrams showing an example of a transmission network architecture for 5G.

Figure 9 is a diagram showing an example of a topology in which NCR performs transmission and reception between a base station and a terminal.

Figure 10 is a diagram showing an example of a beamforming operation of an existing RF repeater.

Figure 11 is a diagram illustrating an example of a beamforming operation of NCR.

Figure 12 is a flowchart of a signal transmission and reception method according to an embodiment of the present disclosure.

Figure 13 is a flowchart of a signal transmission and reception method according to another embodiment of the present disclosure.

14 illustrates a communication system 1 applied to various embodiments of the present disclosure.

Figure 15 illustrates a wireless device that can be applied to various embodiments of the present disclosure.

Figure 16 shows another example of a wireless device that can be applied to various embodiments of the present disclosure.

17 illustrates a signal processing circuit for a transmission signal.

Figure 18 illustrates a wireless communication device applicable to the present disclosure.

In various embodiments of the present disclosure, “A or B” may mean “only A,” “only B,” or “both A and B.” In other words, “A or B” may be interpreted as “A and/or B” in various embodiments of the present disclosure. For example, in various embodiments of the present disclosure, “A, B or C” can be replaced with “only A,” “only B,” “only C,” or “any of A, B, and C.” It can mean "any combination of A, B and C".

A slash (/) or a comma used in various embodiments of the present disclosure may mean “and/or.” For example, “A/B” can mean “A and/or B.” Accordingly, “A/B” can mean “only A,” “only B,” or “both A and B.” For example, “A, B, C” can mean “A, B, or C.”

In various embodiments of the present disclosure, “at least one of A and B” may mean “only A,” “only B,” or “both A and B.” Additionally, in various embodiments of the present disclosure, the expression “at least one of A or B” or “at least one of A and/or B” can be interpreted the same as “at least one of A and B.”

Additionally, in various embodiments of the present disclosure, “at least one of A, B and C” may be referred to as “only A,” “only B,” “only C,” or “A.” , any combination of A, B and C.” Also, “at least one of A, B or C” or “at least one of A, B and/or C” means It may mean “at least one of A, B and C.”

Additionally, parentheses used in various embodiments of the present disclosure may mean “for example.” Specifically, when “control information (PDCCH)” is indicated, “PDCCH” may be proposed as an example of “control information.” In other words, “control information” in various embodiments of the present disclosure is not limited to “PDCCH,” and “PDDCH” may be proposed as an example of “control information.” Additionally, even when “control information (i.e., PDCCH)” is indicated, “PDCCH” may be proposed as an example of “control information.”

In various embodiments of the present disclosure, technical features individually described in one drawing may be implemented individually or simultaneously.

The following technologies include code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), orthogonal frequency division multiple access (OFDMA), or single carrier frequency division multiple access (SC-FDMA). It can be used in various wireless access systems. CDMA can be implemented with wireless technologies such as Universal Terrestrial Radio Access (UTRA) or CDMA2000. TDMA can be implemented with wireless technologies such as Global System for Mobile communications (GSM)/General Packet Radio Service (GPRS)/Enhanced Data Rates for GSM Evolution (EDGE). OFDMA can be implemented with wireless technologies such as IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802-20, Evolved UTRA (E-UTRA), etc. UTRA is part of the Universal Mobile Telecommunications System (UMTS). 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) is part of Evolved UMTS (E-UMTS) using E-UTRA, and LTE-A (Advanced)/LTE-A pro is an evolved version of 3GPP LTE. 3GPP NR (New Radio or New Radio Access Technology) may be an evolved version of 3GPP LTE/LTE-A/LTE-A pro.

For clarity of explanation, the description is based on a 3GPP communication system (eg, LTE, NR, etc.), but the technical idea of the present disclosure is not limited thereto. LTE refers to technology after 3GPP TS 36.xxx Release 8. In detail, LTE technology after 3GPP TS 36.xxx Release 10 is referred to as LTE-A, and LTE technology after 3GPP TS 36.xxx Release 13 is referred to as LTE-A pro. 3GPP NR refers to technology after TS 38.xxx Release 15. 3GPP 6G may refer to technologies after TS Release 17 and/or Release 18. “xxx” refers to the standard document detail number. LTE/NR/6G can be collectively referred to as a 3GPP system. Regarding background technology, terms, abbreviations, etc. used in the description of the present disclosure, reference may be made to matters described in standard documents published prior to the present disclosure. For example, you can refer to the following document:

3GPP LTE

- 36.101: User Equipment (UE) radio transmission and reception

- 36.211: Physical channels and modulation

- 36.212: Multiplexing and channel coding

- 36.213: Physical layer procedures

- 36.214: Physical layer Measurements

- 36.321: Medium Access Control (MAC) protocol specification

- 36.331: Radio Resource Control (RRC)

- 37.213: Physical layer procedures for shared spectrum channel access

3GPP NR

- 38.101-1: Part 1: Range 1 Standalone

- 38.101-2: Part 2: Range 2 Standalone

- 38.101-2: Part 3: Range 1 and Range 2 Interworking operation with other radios

- 38.211: Physical channels and modulation

- 38.212: Multiplexing and channel coding

- 38.213: Physical layer procedures

- 38.214: Physical layer Measurements

- 38.215: Physical layer measurements

- 38.321: Medium Access Control (MAC) protocol specification

- 38.331: Radio Resource Control (RRC)

Terms not defined above for description of the present disclosure are as follows.

IAB-node: RAN node that supports wireless access to the UE and backhauls access traffic wirelessly.

IAB-donor: RAN node that provides the UE's interface to the core network and wireless backhaul functions to the IAB node.

Abbreviations used in this disclosure can be defined as follows.

IAB: Integrated Access and Backhaul

CSI-RS: Channel State Information Reference Signal

DgNB: Donor gNB

AC: Access

BH: Backhaul

FH: Fronthaul

CU: Centralized Unit

DU: Distributed Unit

RU: Remote Unit

MT: Mobile terminal

CU: Centralized Unit

IAB-MT: IAB mobile terminal

NGC: Next-Generation Core network

SA: Stand-alone

NSA: non-stand-alone

EPC: Evolved Packet Core

물리 채널 및 프레임 구조Physical Channel and Frame Structure

Physical channels and typical signal transmission

In a wireless communication system, a terminal receives information from a base station through downlink (DL), and the terminal transmits information to the base station through uplink (UL). The information transmitted and received between the base station and the terminal includes data and various control information, and various physical channels exist depending on the type/purpose of the information they transmit and receive.

When the terminal is turned on or enters a new cell, it performs an initial cell search task such as synchronizing with the base station (S11). To this end, the terminal can synchronize with the base station by receiving a primary synchronization signal (PSS) and a secondary synchronization signal (SSS) from the base station and obtain information such as a cell ID. Afterwards, the terminal can receive broadcast information within the cell by receiving a physical broadcast channel (PBCH) from the base station. Meanwhile, the terminal can check the downlink channel status by receiving a downlink reference signal (DL RS) in the initial cell search stage.

After completing the initial cell search, the terminal acquires more specific system information by receiving a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH) according to the information carried in the PDCCH. You can do it (S12).

Meanwhile, when accessing the base station for the first time or when there are no radio resources for signal transmission, the terminal can perform a random access procedure (RACH) on the base station (S13 to S16). To this end, the terminal transmits a specific sequence as a preamble through a physical random access channel (PRACH) (S13 and S15), and a response message (RAR (Random Access Response) message) can be received. In the case of contention-based RACH, a contention resolution procedure can be additionally performed (S16).

The terminal that has performed the above-described procedure can then perform PDCCH/PDSCH reception (S17) and Physical Uplink Shared Channel (PUSCH)/Physical Uplink Control Channel (Physical Uplink) as a general uplink/downlink signal transmission procedure. Control Channel (PUCCH) transmission (S18) can be performed. Control information transmitted from the terminal to the base station may be referred to as UCI (Uplink Control Information). UCI may include HARQ ACK/NACK (Hybrid Automatic Repeat and reQuest Acknowledgment/Negative-ACK), SR (Scheduling Request), CSI (Channel State Information), etc. CSI may include Channel Quality Indicator (CQI), Precoding Matrix Indicator (PMI), Rank Indicator (RI), etc. UCI is generally transmitted through PUCCH, but when control information and data must be transmitted simultaneously, it can be transmitted through PUSCH. In addition, according to the request/instruction of the network, the terminal can aperiodically transmit UCI to the base station through PUSCH.

Hereinafter, a new radio access technology (new RAT, NR) will be described.

As more communication devices require greater communication capacity, there is a need for improved mobile broadband communication compared to existing radio access technology (RAT). Additionally, Massive Machine Type Communications (MTC), which provides various services anytime, anywhere by connecting multiple devices and objects, is also one of the major issues to be considered in next-generation communications. In addition, communication system design considering services/terminals sensitive to reliability and latency is being discussed. In this way, the introduction of next-generation wireless access technology considering expanded mobile broadband communication, massive MTC, URLLC (Ultra-Reliable and Low Latency Communication), etc. is being discussed, and various embodiments of the present disclosure are used for convenience. The technology is called new RAT or NR.

OFDM (Orthogonal Frequency Division Multiplexing) Numerology

The new radio access technology (RAT) system uses OFDM transmission or a similar transmission method. The new RAT system may follow OFDM parameters that are different from those of LTE. Alternatively, the new RAT system may follow the numerology of existing LTE/LTE-A but have a larger system bandwidth (e.g., 100 MHz). Alternatively, one cell may support multiple numerologies. That is, terminals operating with different numerologies can coexist in one cell.

Referring to Figure 2, in NR, uplink and downlink transmission consists of frames. A wireless frame is 10ms long and is defined as two 5ms half-frames (HF). A half-frame is defined as five 1ms subframes (Subframe, SF). A subframe is divided into one or more slots, and the number of slots in a subframe depends on SCS (Subcarrier Spacing). Each slot contains 12 or 14 OFDM(A) symbols depending on the cyclic prefix (CP). Normally when CP is used, each slot contains 14 symbols. When extended CP is used, each slot contains 12 symbols. Here, the symbol may include an OFDM symbol (or CP-OFDM symbol) and an SC-FDMA symbol (or DFT-s-OFDM symbol).

When CP is usually used, the number of symbols per slot, the number of slots per frame, and the number of slots per subframe vary depending on the SCS, as shown in Table 1 below.

SCS (152^u)SCS (15 ^2u )	N^slot _symb N- ^slot _symbol	N^frame,u _slot N ^{frame, u} _slot	N^subframe,u _slot N ^subframe,u _slot
15KHz (u=0)15KHz (u=0)	1414	1010	1One
30KHz (u=1)30KHz (u=1)	1414	2020	22
60KHz (u=2)60KHz (u=2)	1414	4040	44
120KHz (u=3)120KHz (u=3)	1414	8080	88
240KHz (u=4)240KHz (u=4)	1414	160160	1616

In Table 1, N ^slot _symb may be the number of symbols in a slot, N ^frame,u _slot may be the number of slots in a frame, and N ^subframe,u _slot may be the number of slots in a subframe.

When an extended CP is used, the number of symbols per slot, the number of slots per frame, and the number of slots per subframe vary depending on the SCS, as shown in Table 2 below.

SCS (152^u)SCS (15 ^2u )	N^slot _symb N- ^slot _symbol	N^frame,u _slot N ^{frame, u} _slot	N^subframe,u _slot N ^subframe,u _slot
60KHz (u=2)60KHz (u=2)	1212	4040	44

NR supports multiple numerologies (or subcarrier spacing (SCS)) to support various 5G (5 ^th generation) services. For example, if SCS is 15kHz, it supports wide area in traditional cellular bands, and if SCS is 30kHz/60kHz, it supports dense-urban, lower latency. and a wider carrier bandwidth, and when SCS is 60kHz or higher, it supports a bandwidth greater than 24.25GHz to overcome phase noise.

The NR frequency band can be defined as two types of frequency ranges (FR1, FR2). The numerical value of the frequency range can be changed. For example, the frequency ranges of the two types (FR1, FR2) can be shown in Table 3 below.

Frequency Range designationFrequency Range designation	Corresponding frequency rangeCorresponding frequency range	Subcarrier SpacingSubcarrier Spacing
FR1FR1	450MHz - 6000MHz450MHz - 6000MHz	15, 30, 60kHz15, 30, 60kHz
FR2FR2	24250MHz - 52600MHz24250MHz - 52600MHz	60, 120, 240kHz60, 120, 240 kHz

For convenience of explanation, among the frequency ranges used in the NR system, FR1 may mean "sub 6GHz range", and FR2 may mean "above 6GHz range" and may be called millimeter wave (mmW). . As mentioned above, the numerical value of the frequency range of the NR system can be changed. For example, FR1 may include a band of 410MHz to 7125MHz as shown in Table 4 below.

Frequency Range designationFrequency Range designation	Corresponding frequency rangeCorresponding frequency range	Subcarrier SpacingSubcarrier Spacing
FR1FR1	410MHz - 7125MHz410MHz - 7125MHz	15, 30, 60kHz15, 30, 60kHz
FR2FR2	24250MHz - 52600MHz24250MHz - 52600MHz	60, 120, 240kHz60, 120, 240kHz

Referring to Table 4, that is, FR1 may include frequency bands above 6 GHz (or 5850, 5900, 5925 MHz, etc.). For example, the frequency band above 6 GHz (or 5850, 5900, 5925 MHz, etc.) included within FR1 may include an unlicensed band. Unlicensed bands can be used for a variety of purposes, for example, for communications for vehicles (e.g., autonomous driving). In an NR system, OFDM(A) numerology (eg, SCS or CP length, etc.) may be set differently between a plurality of cells merged into one UE. Accordingly, between cells in which time resources (e.g., subframe (SF), slot, or (absolute time) of Transmission Time Interval (TTI) (referred to as Time Unit (TU))) consisting of the same number of symbols are merged. It can be set differently.

Figure 3 is a diagram showing an example of the slot structure of an NR frame.

Referring to FIG. 3, a slot includes a plurality of symbols in the time domain. For example, in the case of normal CP, one slot includes 7 symbols, but in the case of extended CP, one slot includes 6 symbols. A carrier wave includes a plurality of subcarriers in the frequency domain. RB (Resource Block) is defined as multiple (eg, 12) consecutive subcarriers in the frequency domain. BWP (Bandwidth Part) is defined as a plurality of consecutive (P)RBs in the frequency domain and may correspond to one numerology (e.g., SCS or CP length, etc.). A carrier wave may contain up to N (e.g., 5) BWPs. Data communication is performed through an activated BWP, and only one BWP can be activated for one terminal. Each element in the resource grid is referred to as a Resource Element (RE), and one complex symbol can be mapped.

Figure 4 is a diagram showing an example of a self-contained slot.

In the NR system, a frame is characterized by a self-contained structure in which a DL control channel, DL or UL data, and UL control channel can all be included in one slot. For example, the first N symbols in a slot may be used to transmit a DL control channel (hereinafter, DL control area), and the last M symbols in a slot may be used to transmit a UL control channel (hereinafter, UL control area). N and M are each integers greater than or equal to 0. The resource area (hereinafter referred to as data area) between the DL control area and the UL control area may be used for DL data transmission or may be used for UL data transmission. As an example, the following configuration may be considered. Each section is listed in chronological order.

1. DL only configuration

2. UL only configuration

3. Mixed UL-DL configuration

- DL area + GP (Guard Period) + UL control area

- DL control area + GP + UL area

* DL area: (i) DL data area, (ii) DL control area + DL data area

* UL area: (i) UL data area, (ii) UL data area + UL control area

PDCCH may be transmitted in the DL control area, and PDSCH may be transmitted in the DL data area. PUCCH may be transmitted in the UL control area, and PUSCH may be transmitted in the UL data area. In the PDCCH, Downlink Control Information (DCI), for example, DL data scheduling information, UL data scheduling information, etc. may be transmitted. In PUCCH, UCI, for example, ACK/NACK (Positive Acknowledgment/Negative Acknowledgment) information for DL data, CSI (Channel State Information) information, SR (Scheduling Request), etc. may be transmitted. GP provides a time gap when the gNB and UE switch from transmission mode to reception mode or from reception mode to transmission mode. Some symbols at the point of transition from DL to UL within a subframe may be set to GP.

Referring to Figure 5, ITU-T (Telecommunication Standardization Sector) is a slightly different 5G transmission network architecture consisting of three logical elements: CU (Control Unit), DU (Distributed Unit), and RU (Radio Unit) as shown in Figure 5. was adopted. In this model, the functions of the mid layer and lower layer are divided into DU and RU. According to the division of functions between DU and RU, the RU implements the Radio Frequency (RF) function and, if possible, also implements the low-PHY function and the high-PHY function.

6 to 8, CUs, DUs, and RUs may be grouped in different combinations to form actual physical network elements according to network requirements. This can provide flexibility to accommodate a variety of network architectures, applications, and transport network requirements.

As shown in Figures 5 to 8, the transmission network between the ^5th generation core network (5GC) and the CU is referred to as a backhaul, and the backhaul network implements the 3GPP Next generation (NG) interface. Likewise, the transport network between CU and DU is referred to as midhaul, and the midhaul network implements the 3GPP F1 interface. Lastly, the transport network between DU and RU is referred to as fronthaul. Generally, backhaul, midhaul and fronthaul are referred to as xhaul.

RIS (Reconfigurable intelligent surface)

RIS can be used to control the propagation of electromagnetic waves by changing their electrical and magnetic properties on a surface. RIS is also known as intelligent reflecting surface (IRS) and large intelligent surface (LIS), and can be a programmable structure. In addition to controlling the propagation of electromagnetic waves, RIS can be used to sense the wireless environment by integrating sensing functions. By placing the RIS in the environment in which the wireless system operates, the properties of the wireless channel can be at least partially controlled.

These capabilities of RIS can provide many benefits, including the potential to improve reliability and coverage performance through beamforming or range extension. The ability to control the radio environment somewhat changes the traditional wireless system design paradigm, where the wireless channel was viewed as an uncontrollable entity that always distorted the transmitted signal. Therefore, traditionally the transmitter (TX) and receiver (RX) are designed to equalize the influence of the channels. Envisaged scenarios range from a single RIS being placed on a wall to direct signals from a predetermined direction.

By using RIS, it is possible to provide a ‘transmission effect’ of the gNB signal where external signals are forwarded into the building, and to improve coverage of shaded areas by providing a ‘reflection effect’ in the NLoS environment.

NR의 NCR(Network-controlled repeater)Network-controlled repeater (NCR) of NR

Existing RF repeater

RF repeaters are a non-regenerative type of relay node that simply amplifies and forwards whatever it receives. The main advantages of RF repeaters are low cost, ease of deployment, and no increase in latency. The main drawback of RF repeaters is that they amplify signals and noise, which can contribute to increased interference (contamination) in the system.

Rel(release)-17 WI(work item) of RF repeater (RAN4)

RF repeaters are specified in Rel-17 of RAN4 for the Frequency Range 1 (FR1) Frequency Division Duplex (FDD)/Time division Duplex (TDD) and Frequency Range 2 (FR2) bands. Rel-17 WID includes only RF requirements. RAN4 Work item description (WID) (RP-210818) states that it is assumed that the RF repeater does not perform adaptive beamforming toward the UE.

NCR for Rel-18 NR

Coverage is a fundamental aspect of cellular network deployment. Mobile carriers rely on various types of network nodes for deployment to provide blanket coverage. Deployment of regular full-stack cells is an option, but may not always be possible (e.g., if there is no backhaul availability) or always economically viable.

As a result, new types of network nodes were considered to increase network deployment flexibility for mobile operators. For example, Integrated Access and Backhaul (IAB) is a new type of network node that does not require wired backhaul, introduced in Rel-16 and enhanced in Rel-17. Another type of network node is an RF repeater, which simply amplifies and forwards any signal it receives. RF repeaters have been widely deployed in 2G, 3G, and 4G to supplement the coverage provided by regular full-stack cells. In Rel-17, RAN4 specified RF and Electromagnetic Compatibility (EMC) requirements for RF repeaters for NR targeting both FR1 and FR2.

RF repeaters provide a cost-effective means of extending network coverage. However, RF repeaters have the limitation of simply performing amplification and forwarding tasks without considering various factors that can improve performance. These elements include semi-static and/or dynamic DL/UL configuration, adaptive transmitter/receiver spatial beamforming, and ON-OFF configuration. OFF) status, etc. may be included.

Compared to existing RF repeaters, NCR has improved the ability to receive and process side control information. Side control information allows network control repeaters to perform amplification and forwarding tasks in a more efficient manner. Potential benefits may include mitigation of unnecessary noise amplification, better spatial directivity transmit and receive, and simplified network integration.

Research on NCR for NR focuses on the following scenarios and assumptions: NCR is an in-band RF repeater used to extend network coverage in the FR1 and FR2 bands, and during study, FR2 deployment can be prioritized for both outdoor and Outdoor to Indoor (O2I) scenarios. Applicable only to single hop stationary NCR. NCR is transparent to the UE. NCR can simultaneously maintain a gNB (gNodeB)-repeater link and a repeater-UE link. Here, cost-effectiveness is a key consideration for NCR.

RAN1 has studied and identified whether the following side control information is needed for NCR, including maximum transmit power assumptions: That is, beamforming information, timing information for aligning the NCR's transmission/reception boundary b, UL-DL TDD configuration information, on-off information for efficient interference management and energy efficiency maintenance, and power control information for efficient interference management (second priority) There is research and identification on whether side control information such as (as) is needed for NCR. Additionally, RAN1 includes the study and identification of layer 1/layer 2 (L1/L2) signals (including the configuration of L1/L2) for forwarding side control information.

There is research on identification and authentication of NCR in RAN2 and RAN3. Here, coordination with SA3 may be necessary. NCR (Network-controlled repeater) can be composed of RU and MT.

Figure 9 is a diagram showing an example of a topology in which NCR performs transmission and reception between gNB and UE.

In FIG. 9, a CU and/or DU exist in the gNB, and the NCR may be connected to the gNB. NCR may be composed of MT (Mobile terminal) and RU.

RU may be composed of only the RF layer. The RU can receive a signal transmitted by the gNB at the RF end and forward it to the UE, and can receive a signal transmitted by the UE at the RF end and forward it to the gNB. The RU only forwards signals between gNB and UE, but cannot generate signals/channels on its own and transmit them to gNB/UE or receive and search for signals/channels from gNB/UE. In order to forward the received signal, the RU may consider adjusting the transmission/reception beam direction, DL/UL direction, on/off status, transmission power, etc. at the RF end. However, the operation of these RUs cannot be determined by the NCR on its own and can be completely controlled by the gNB.

MT may include an RF layer and L1, L2, and/or L3 layers. For example, an MT may consist of only an RF layer and an L1 layer or an L1/L2 layer, or an MT may consist of an RF layer and L1/L2/L3 layers. The MT can search/receive signals/channels transmitted by the gNB, and the MT can generate and transmit signals/channels transmitted to the gNB. The MT can receive information necessary to control the operation of the RU (i.e. side control information) from the gNB. MT does not transmit or receive with the UE.

When compared to existing RF repeaters, the NCR is capable of the following operations.

Figure 10 is a diagram showing an example of a beamforming operation of an existing RF repeater. Figure 11 is a diagram illustrating an example of a beamforming operation of NCR.

Referring to Figures 10 and 11, in the case of an existing RF repeater, beamforming is performed applying omni-direction or fixed direction, as shown in Figure 10. On the other hand, in NCR, as shown in FIG. 11, beamforming gain can be obtained by adaptively adjusting the transmission/reception beam direction of the NCR according to the location of the UE and the channel situation of the UE.

In the case of existing RF repeaters, the TDD system cannot distinguish between DL and UL directions, so transmission and reception in the DL and UL directions are always performed simultaneously. Alternatively, only the fixed TDD configuration is applied to perform switching between the DL direction and the UL direction in a fixed time pattern. On the other hand, NCR can perform DL/UL switching considering the TDD configuration. This enables adaptive DL/UL operation, reduces power waste caused by forwarding unnecessary signals, and reduces interference.

In the case of existing RF repeaters, the power of the received signal is always amplified and forwarded, regardless of whether the gNB and UE transmit signals. This wastes power unnecessarily and increases interference to the surrounding area. In the case of NCR, an on/off operation is performed, and when there is no signal to forward to the gNB/UE, the RU operation is turned off to avoid forwarding unnecessary signals.

In the case of existing RF repeaters, the power of the received signal is amplified and forwarded at a fixed ratio. When forwarding a signal with unnecessarily large power, reduce the impact of interference on the surroundings by reducing the NCR's transmission power. When forwarding a signal with low power, the signal can be stably forwarded to the receiver by increasing the NCR's transmission power. .

In the case of existing RF repeaters, they operate without knowing the DL/UL slot boundary. On the other hand, in the case of NCR, in order to adaptively adjust beamforming, on/off, DL/UL direction, transmission power, etc. as described above, NCR must know the transmission/reception boundaries of DL/UL. Through this, NCR can apply the operation of the RU differently for each unit time (eg, slot or symbol).

Based on this discussion, the present invention proposes a method for the NCR to determine/set TDD resource allocation information and a method for receiving instructions from the base station.

This disclosure assumes operation in NCR. However, the present disclosure can also be applied to devices other than NCR. In particular, the contents of the present invention can be applied to the operation of RIS. For this purpose, NCR mentioned in the present invention can be replaced with RIS and expanded/interpreted. In this case, the RU plays the role of forwarding the signal from the gNB to the UE in the RIS and the role of forwarding the signal from the UE to the gNB, and the MT receives side control information from the gNB to control signal transmission of the RU. can perform its role. In this disclosure, network can be interpreted as being replaced with gNB or CU/DU. Additionally, gNB can be interpreted as a replacement for network or CU/DU.

NCR aims to control the operation of RU more intelligently, going beyond the limitations of existing RF (radio frequency) repeaters that only simply amplify and forward signals. For this purpose, a new concept of side control information (side control information) was introduced in NCR. Some operation control of the RU is possible by transmitting and receiving side control information between the gNB and MT.

However, as the cost-effectiveness of NCR is highlighted as an important factor, it may be difficult for MT to have full control capabilities in the form of a full protocol stack. However, NCR has the advantage of being differentiated from existing RF repeaters that are implemented only in that it enables efficient control of RU using side control information. Through the development of intelligent operation technology for NCR, it can be expected to apply techniques that can achieve performance gains compared to low cost investment.

In NCR, in order to forward the signal received by the RU, it may be considered to adjust the transmission/reception beam direction, DL/UL direction, on/off status, transmission power, etc. at the RF end. However, the operation of these RUs cannot be determined by the NCR on its own and can be entirely controlled by the gNB. To this end, the MT can receive information necessary to control the operation of the RU (i.e., side control information) from the gNB.

For example, side control information may include all or part of the following information.

1) Beamforming information

-> Information about the transmit and receive beam directions of the RU

-> This information may include beam direction for UL transmission to gNB, DL reception from gNB, DL transmission to UE and/or UL reception from UE.

2) Timing information to align transmission/reception boundaries of network-controlled repeater

->Information for RU to align transmission/reception slots or boundaries

3) DL-UL TDD configuration information

->Information about DL/UL direction of RU

4) ON-OFF information for efficient interference management and improved energy efficiency

-> Information about the on-off operation of RU

5) Power control information for efficient interference management

-> Information about the transmission power of RU

->This information may include UL transmission power to the gNB and/or DL transmission power to the UE.

In this disclosure, it is proposed to use the DL/UL information determined by the MT to determine information about the TDD DL/UL direction of the RU. In other words, if the MT determines that a specific resource is DL (UL), the RU may also determine that it operates as DL (UL) on that resource. For this purpose, MT's semi-static TDD DL/UL configuration can be used. In other words, if the MT determines that a specific resource is DL(UL) through the MT's semi-static TDD DL/UL configuration, the RU may also determine that it operates as DL(UL) on that resource.

The MT's semi-static TDD DL/UL configuration for this determination includes only TDD-UL-DL-configuration common (TDD-UL-DL-configurationCommon) information or TDD-UL-DL-configuration common information and TDD-UL- Can contain all DL-configuration exclusive (TDD-UL-DL-configurationDedicated) information. For example, if the MT's semi-static TDD DL/UL configuration includes only TDD-UL-DL-configuration common information, the MT may direct a specific resource to a specific resource direction (resource) through the TDD-UL-DL-configuration common information. direction) (i.e., DL, UL, or flexible (F)), the RU may also be determined to have the same resource direction in the corresponding resource.

If the MT's semi-static TDD DL/UL settings used to determine the RU's DL/UL information include both TDD-UL-DL-setting common information and TDD-UL-DL-setting exclusive information, the MT If a specific time resource is determined to be in a specific resource direction (i.e., DL, UL, or F) through the TDD-UL-DL-configuration common information and TDD-UL-DL-configuration exclusive information, the RU also determines the same resource in that time resource. It can be judged to have direction.

NCR's side control information can be transmitted through the carrier/component carrier (CC) of a separate link to exchange control information between gNB and MT, and TDD DL/ UL information is semi-static/dynamic and has the characteristic of being set/instructed independently of the MT.

For example, a minimum initial access process may be required between the gNB and the MT to create a link for exchanging side control information between the gNB and the MT. In this case, beam management in which MT undergoes beam sweeping of SS/PBCH (Synchronization Signal/Physical Broadcast Channel) blocks and beam refinement through CSI-RS (Channel State Information-Reference Signal) In order to properly perform the management) procedure, the appropriate semi-static/dynamic TDD DL/UL information of the MT needs to be set/instructed. It is possible to consider how the MT determines the DL/UL information in the RU's semi-static TDD flexible resources by appropriately utilizing the MT's dynamic TDD DL/UL information.

Therefore, this disclosure proposes a method for the MT to determine/determine DL/UL information in the RU's semi-static TDD flexible resource based on the MT's dynamic TDD DL/UL information. Here, the RU's semi-static TDD flexible resource may be set in advance based on the MT's semi-static TDD information (D/F/U).

Additional advantages, objects and features of the present disclosure will be set forth in part in the following description, and in part will be apparent to those skilled in the art, or may be learned from implementation of the present disclosure. The objects and other advantages of the present disclosure can be realized and achieved by the structure particularly pointed out in the specification and claims as well as the accompanying drawings.

The structure, operation and other features of the present disclosure will be understood by the embodiments of the present invention described with reference to the accompanying drawings.

Similar to existing RF repeaters, RUs do not have the ability to make decisions on their own, but it may be possible to efficiently control the RUs through side control information newly introduced in NCR.

Dynamic TDD resource (DL/UL) allocation can be considered as one of the link adaptation methods that can be considered through side control information newly introduced between gNB-MT of NCR. This is not possible with existing RF repeaters that only perform amplification and transmission at fixed time/frequency resources.

In particular, when using a dynamic TDD DL/UL allocation method within the coverage of NCR, there may be advantages over existing RF repeaters in terms of adaptive beam operation and efficient interference management.

This disclosure proposes that the MT also use the MT's semi-static TDD DL/UL configuration and the MT's dynamic DL/UL information to determine the DL/UL direction of the RU. That is, when the MT determines DL/UL direction information in a specific time resource based on dynamic TDD DL/UL information, the RU may also determine that it has the same DL/UL direction in the corresponding time resource.

Considering that the RU does not have control capabilities, it may be considered to determine the DL/UL information in the RU's semi-static TDD flexible resource based on the dynamic TDD DL/UL information indicated to the MT.

Here, the dynamic TDD or dynamic TDD DL/UL information indicated to the MT may be information indicated to the MT through a slot format indication (SFI) of DCI format 2_0, and/or the MT may be set to semi-static or dynamic. It may be a resource set/instructed to the MT to transmit a DL signal/channel or receive a UL signal/channel through an indication.

As described above, this disclosure proposes a method for determining/determining the DL/UL information of the RU in the semi-static TDD flexible resource of the RU based on the dynamic TDD DL/UL information indicated to the MT.

5.1 MT의 슬롯 포맷 정보를 기반으로 RU의 DL/UL 정보를 결정5.1 Determine RU’s DL/UL information based on MT’s slot format information

We propose a method for the RU to determine the DL/UL information of the RU based on the slot format information of the MT. Here, the MT's slot format information may mean information indicating additional DL/UL for the MT's semi-static TDD flexible resources. For example, the additional DL/UL indicated information may be dynamic TDD DL/UL information indicated to the MT through SFI of DCI format 2_0 in the MT's semi-static TDD flexible resource.

Here, a more specific procedure in which dynamic TDD is performed is cell-specific and/or UE-specific RRC TDD-UL-DL-setting configuration information and /or when the MT receives an SFI indication of DCI format 2_0, which is UE group common signaling, through PDCCH for semi-static TDD flexible resources configured through TDD-UL-DL-configuration proprietary information, the container of DCI ) # (i.e., of TS 38.213 table 11.1.1.-1), which is a offset of the slotFormatCombinations set in the slotFormatCombinationId of the RRC corresponding to the SFI-index indicated by the offset of positionInDCI included in ) It can refer to a series of processes in which TDD D/F/U patterns are determined in order. In this disclosure, UE-specific may be MT-specific.

RU has no separate control capabilities. Therefore, the RU can use the MT's DL/UL information as is to determine the RU's DL/UL information. Below, we propose a method of determining the DL/UL information of the RU based on the slot format information of the MT.

Alt 1. RU determines the MT's semi-static TDD flexible resources to be off.

The RU may determine the MT's semi-static TDD flexible resource to be OFF. Here, the MT's semi-static TDD flexible resources are resources not allocated to DL/UL (i.e., semi-static TDD) through RRC's TDD-UL-DL-configuration common information and/or TDD-UL-DL-configuration exclusive information. It may be a resource set as flexible), or it may be a resource not indicated by SFI of DCI format 2_0. Alternatively, it may be the case that the MT does not receive the SFI even if it is transmitted.

Additionally, determining that the RU is off may mean that the RU does not perform transmission and reception for relay. More specifically, determining that the RU is off may mean that the RU does not perform DL operations via the RU on the links from gNB to the RU and from the RU to the UE, and that the RU does not perform DL operations through the RU on the links from the UE to the RU and from the RU to the gNB. This may mean that the UL operation through the RU is not performed. Propagation delay between RU-UE links can be corrected by the RU determining the MT's semi-static TDD flexible resource to be off.

Alt 2. MT's dynamic TDD information (D/F/U) is equally applied to RU.

The RU uses the MT's dynamic TDD information (D/F/U) as is to determine DL/UL information. In other words, when the dynamic TDD information (D/F/U) for a specific slot/symbol of the MT is set/instructed through the SFI of DCI format 2_0, the RU provides the dynamic TDD information (D/F/U) of the MT in the same slot/symbol of the RU. F/U) applies equally. In this case, the MT's dynamic TDD information (D/F/U) is the offset of positionInDCI of DCI format 2_0 in which SFI-RNTI (Radio Network Temporary Identifier) scrambling was performed in the MT's semi-static TDD flexible resources. ) may mean that the TDD pattern is determined according to the order of the slot format # configured in the offset of the slotFormatCombinations set in the slotFormatCombinationId of the corresponding RRC according to the SFI index indicated by ( ). Alternatively, it may be information indicated by DL/UL for a separate slot/symbol for a specific purpose within the MT's semi-static TDD flexible resource.

RU has no separate control capabilities. Therefore, the RU uses the MT's dynamic TDD information (D/F/U) set/indicated in the slot/symbol in the RU's semi-static TDD flexible resource as is to perform D/F/U in the same slot/symbol of the RU. Information can be judged.

Alt 2-1. If the MT's dynamic TDD information (D/F/U) is a flexible resource, the RU determines it to be OFF.

For a slot/symbol in which the MT's dynamic TDD information (D/F/U) is specifically indicated as a flexible resource, the RU determines it to be off in the same slot/symbol.

That the MT's dynamic TDD information is indicated as a flexible resource may mean that the TDD information indicated in the SFI of DCI format 2_0 in the MT's semi-static TDD flexible resource is indicated as flexible rather than DL/UL information.

Additionally, determining that the RU is off may mean that the RU does not perform transmission and reception for relay. More specifically, determining that the RU is off may mean that the RU does not perform DL operations via the RU on the links from gNB to the RU and from the RU to the UE, and that the RU does not perform DL operations through the RU on the links from the UE to the RU and from the RU to the gNB. This may mean that the UL operation through the RU is not performed. The propagation delay between RU-UE links can be corrected by the RU turning off the dynamic TDD flexible resources of the MT.

5.2 MT의 스케줄링 정보를 기반으로 RU의 DL/UL 정보를 결정5.2 Determine RU’s DL/UL information based on MT’s scheduling information

We propose a method for the RU to determine the DL/UL information of the RU based on the MT's scheduling information. Here, the MT's scheduling information may mean resources defined as DL/UL in the process of setting up transmission and reception of signals/channels to the MT. In other words, the RU operates by implicitly determining that resources set/instructed to transmit DL signals/channels through semi-static settings or dynamic instructions are DL resources, and operates by implicitly determining/instructing resources set/instructed to receive DL signals/channels. The resource can be implicitly judged to be a UL resource and operated.

In this way, if the MT implicitly determines DL/UL information through setting/indicating a DL/UL signal/channel for a specific resource, the RU may also determine that it operates in the same DL/UL direction in the corresponding resource.

At this time, transmission/reception configuration for the MT's signal/channel can be performed in a slot/symbol where the MT's semi-static TDD flexible resources are not separately indicated as DL/UL. If the MT's semi-static TDD flexible resource is not indicated as DL/UL, it may be because it is not indicated as DL/UL through SFI of DCI format 2_0 in the corresponding flexible slot/symbol, or if the MT does not receive SFI. there is.

In the process of setting up transmission and reception for the signal/channel of the MT, we propose a method of determining the DL/UL information of the RU based on the DL/UL defined scheduling information. Only one of the methods suggested below can be applied, or both methods can be applied simultaneously.

Alt 1. If the MT is not scheduled as a separate DL/UL, the RU is judged to be OFF.

The RU determines the same slot/symbol of the RU as OFF for a slot/symbol that the MT has not separately scheduled with DL/UL information. Here, a slot/symbol for which the MT is not scheduled with DL/UL information means that the MT's final defined resource is a flexible resource. RU has no separate control capabilities. Therefore, the RU determines the same slot/symbol of the RU as OFF for a slot/symbol defined as a flexible resource for which the MT is not scheduled with DL/UL information.

Additionally, determining that the RU is off may mean that the RU does not perform transmission and reception for relay. More specifically, determining that the RU is off may mean that the RU does not perform DL operations via the RU on the links from gNB to the RU and from the RU to the UE, and that the RU does not perform DL operations through the RU on the links from the UE to the RU and from the RU to the gNB. This may mean that the UL operation through the RU is not performed. The propagation delay between RU-UE links can be corrected by the RU turning off resources that are not scheduled as separate DL/UL of the MT.

Alt 2. When the MT sets up transmission and reception of signals/channels, the scheduling information defined as DL/UL is equally applied to the RU.

The RU can use the DL/UL information of the slot/symbol determined in the process of MT setting up signal/channel transmission/reception for the same slot/symbol of the RU. That is, if the MT implicitly determines DL/UL information through setting/instruction of a DL/UL signal/channel for a specific resource, the RU may also determine that it operates in the same DL/UL direction in that resource.

If the RU uses the DL/UL information determined by the MT in Alt 1 and Alt 2 described above, the RU will use the MT's information at the same time at a specific point in time. That is, the DL/UL information that the MT has in slot #n is judged to be the DL/UL information of the RU in slot #n at the same time. At this time, the scheduled DL/UL information that the MT has in slot #n may be information set/instructed before slot k. Therefore, the condition for the DL/UL information determined by the RU to be valid may be based on the MT's slot #n-k, which is the indication/setting time for the scheduled DL/UL information existing in the MT's slot #n.

Here, the reason why the difference in k slots should be the standard may be time boundary mismatch between MT/RU. For example, if there is a time boundary mismatch between MT/RU, there may be a processing time delay (=k) to correct the error. At this time, the DL/UL information of slot #n of the MT determined after slot #n-k may be information that cannot be applied to slot #n of the RU. Therefore, in order for the DL/UL information in slot #n determined by the RU to be valid, the DL/UL information in slot #n of the MT must be set/instructed at least slot #n-k before.

Alternatively, if the RU determines to switch the D/U operation at a specific time, processing time may be required for the RU to actually switch and apply the D/U operation. Additionally, if the DL/UL slot boundary of the RU is misaligned, a gap time may be needed to align the timing boundary. Therefore, even if the RU determines that the D/U operation is switched, it may be difficult for the RU to apply this immediately. If the MT determines the D/U operation for a specific point in time, and the RU also determines that the same D/U information applies to that point in time, the MT determines the D/U information for the specific point in time by considering the RU's processing time. The RU can actually apply the D/U information determined at that point in time only if it is judged in advance of that point in time. Considering this, we propose the following actions.

If the MT determines the DL/UL information scheduled in slot #n before slot #n-k, the RU may determine the information to be the RU's DL/UL information in slot #n. If the MT determines the DL/UL information scheduled in slot #n after slot #n-k, the RU does not use the information to determine the RU's DL/UL.

In this case, the k value may be a fixed value for the DL/UL information determined by the RU to be valid. Alternatively, the k value may be a value set through RRC so that the DL/UL information determined by the RU is valid.

5.3 MT가 slot format/스케줄링으로 DL/UL 정보가 지시되지 않은 상황의 RU의 DL/UL 정보 결정5.3 Determination of RU’s DL/UL information in situations where MT does not indicate DL/UL information through slot format/scheduling

If DL/UL is not configured/indicated for a specific resource of the MT through the methods proposed above, the RU cannot determine DL/UL information. When separate DL/UL information is set/indicated in the corresponding resource of the MT, we propose a method for the RU to determine the DL/UL information for the corresponding resource.

Separate DL/UL information being set/indicated for a specific resource of the MT may mean that DL/UL is set/instructed only for a specific slot/symbol. DL/UL information for the corresponding resource of the RU may mean DL/UL information set/indicated in a specific slot/symbol of the MT.

More specifically, when the RU determines the slot/symbol of the RU with the DL/UL information set/indicated in a specific slot/symbol of the MT, we propose a method for the RU to determine the adjacent resources of the slot/symbol. . Here, the adjacent resource may mean an adjacent symbol or an adjacent slot within the slot based on the corresponding slot/symbol.

Method 1. If a specific symbol in a specific slot is determined to be DL/UL, the remaining symbols in the slot can be implicitly judged.

For the RU's DL/UL determination, if symbol #n is determined to be DL within a specific slot of the RU, the RU may determine symbols #0 to #n, which are the first symbols of the corresponding slot of the RU, to be DL. Alternatively, if symbol #n is determined to be UL within a specific slot of the RU, the RU may determine symbol #n to the last symbol of the corresponding slot of the RU to be UL.

Method 2. For two neighboring slots, if a specific symbol in one slot and a specific symbol in the remaining slot are all determined to be DL or all UL, all symbols between the two symbols can be implicitly judged.

That is, for two neighboring slots of an RU, if symbol #m in the first slot is judged to be DL and symbol #n in the second slot is judged to be DL, there is a symbol judged to be UL between symbol #m and symbol #n. If not, the RU may determine the symbols between symbol #m and symbol #n to be DL. Or, for two neighboring slots of an RU, if symbol #m in the first slot is judged to be UL and symbol #n in the second slot is judged to be UL, there is a symbol determined to be DL between symbol #m and symbol #n. If not, the symbols between symbol #m and symbol #n can be judged as UL.

5.4 MT의 최종 DL/UL 정보와 RU의 DL/UL 정보가 다른 경우 RU의 DL/UL 판단5.4 Decision on RU’s DL/UL when MT’s final DL/UL information and RU’s DL/UL information are different

There may be cases where the DL/UL information of the RU and the DL/UL information finally set in the MT are different. For example, the RU's DL/UL information received through side control information and the DL/UL information determined by the MT through TDD DL/UL settings may be different. For example, when the information is different, it may mean that in the same slot/symbol section of the MT and RU, the MT is set to DL but the RU is judged to be UL, or the MT is set to UL but the RU is judged to be DL. That is, there may be a collision case where the DL/UL pattern of the slot determined by the RU is DDDDDDDUUUUUUU, but the DL/UL pattern of the slot finally set/instructed to the MT is UUUUUUUUDDDDDDD. In such a collision case, we propose a method for R to determine the DL/UL information of the RU.

Method 1. Use the MT’s DL/UL information to override the RU.

The RU uses the DL/UL information of the corresponding slot/symbol of the MT for the slot/symbol of the RU where a collision occurred.

Method 2. Apply RU’s DL/UL information to MT.

The MT applies the DL/UL information used for the corresponding slot/symbol of the RU to the same slot/symbol of the MT for the slot/symbol of the MT where a collision occurred.

In FIG. 12, the first device may be the MT described above, and the second device may be the RU described above. Additionally, the first device and the second device may be included in one electronic device (eg, NCR).

Referring to FIG. 12, the first device may receive first semi-static TDD resource allocation information (S1210). The first device may receive first semi-static TDD resource allocation information including a plurality of first flexible resources that are not allocated to UL or DL from the base station.

The first device can receive TDD UL-DL additional configuration information (S1220). The first device can receive TDD UL-DL additional configuration information from the base station.

Here, the TDD UL-DL additional configuration information may be dynamic TDD UL-DL configuration information to be applied to the first device. TDD UL-DL additional configuration information may be received through control information for the first device, or may be received through scheduling information for the first device.

Some of the plurality of first flexible resources received in S1210 may not correspond to TDD UL-DL additional configuration information, and some of the remaining resources may correspond to TDD UL-DL additional configuration information.

TDD UL-DL additional configuration information may include only UL or DL information for a specific symbol included in a specific slot among the plurality of first flexible resources.

TDD UL-DL additional configuration information includes UL or DL information for the first symbol included in the first slot among the plurality of first flexible resources and information included in the second slot adjacent to the first slot among the first flexible resources. It may include UL or DL information about the second symbol.

The second device may determine second semi-static TDD resource allocation information (S1230).

The second device updates one or more of the plurality of first flexible resources in the first semi-static TDD resource allocation information based on the TDD UL-DL additional configuration information, thereby providing second semi-static TDD resource allocation information. can be decided.

The second semi-static TDD resource allocation information may include information on one or more second flexible resources. Here, the one or more second flexible resources may be propagation delays between UL and DL.

The second semi-static TDD resource allocation information may be determined by updating one or more of the plurality of first flexible resources in the first semi-static TDD resource allocation information to be the same as one or more resources in the TDD UL-DL additional configuration information. .

If some of the first flexible resources included in the first semi-static TDD resource allocation information in S1210 do not correspond to the TDD UL-DL additional configuration information received in S1220, they do not correspond to the TDD UL-DL additional configuration information. First flexible resources that are not included may be maintained as second flexible resources in the second semi-static TDD resource allocation information.

The TDD UL-DL additional configuration information received in S1220 includes only UL or DL information for a specific symbol included in a specific slot among the plurality of first flexible resources, and when the specific symbol is UL, the plurality of first flexible resources The second semi-static TDD resource allocation information is determined by updating all of the first flexible resources included in a specific slot among the resources to UL, and when the specific symbol is DL, it is allocated to a specific slot among the plurality of first flexible resources. The second semi-static TDD resource allocation information can be determined by updating all of the included first flexible resources to the DL.

The TDD UL-DL additional configuration information received in S1220 includes information on the UL or DL for the first symbol included in the first slot among the plurality of first flexible resources and the second symbol adjacent to the first slot among the first flexible resources. Contains UL or DL information about the second symbol included in the slot, and when the first symbol and the second symbol are UL, the first flexible resource between the first symbol and the second symbol among the plurality of first flexible resources The second semi-static TDD resource allocation information is determined by updating all of the resources to UL, and when the first symbol and the second symbol are DL, between the first symbol and the second symbol among the plurality of first flexible resources The second semi-static TDD resource allocation information can be determined by updating all of the first flexible resources to the DL.

The second device may forward a signal based on the second semi-static TDD resource allocation information (S1240). The second device may forward a signal from the base station to the terminal, or forward a signal from the terminal to the base station, based on the second semi-static TDD resource allocation information.

In S1230, when the second semi-static TDD resource allocation information includes information on one or more second flexible resources, the second device may not forward a signal on the one or more second flexible resources.

Meanwhile, if the second semi-static TDD resource allocation information to be applied to the second device is different from the third semi-static TDD resource allocation information to be applied to the first device, based on the second semi-static TDD resource allocation information, Transmission and reception of signals by the first device and transmission and reception of signals by the second device may be performed.

In contrast, if the second semi-static TDD resource allocation information to be applied to the third semi-static second device is different from the third semi-static TDD resource allocation information to be applied to the first device, based on the enemy TDD resource allocation information Thus, transmission and reception of signals by the first device and transmission and reception of signals by the second device can be performed.

In FIG. 13, the first device may be the MT described above, and the second device may be the RU described above. Additionally, the first device and the second device may be included in one electronic device (eg, NCR).

Referring to FIG. 13, the base station may transmit first semi-static TDD resource allocation information (S1310). The base station may transmit first semi-static TDD resource allocation information including a plurality of first flexible resources that are not allocated to UL or DL to the first device.

The base station may transmit TDD UL-DL additional configuration information (S1320). The base station may transmit TDD UL-DL additional configuration information to the first device.

Here, the TDD UL-DL additional configuration information may be dynamic TDD UL-DL configuration information to be applied to the first device. TDD UL-DL additional configuration information may be transmitted through control information for the first device, or may be transmitted through scheduling information for the first device.

Some of the plurality of first flexible resources transmitted in S1310 may not correspond to TDD UL-DL additional configuration information, and some of the remaining resources may correspond to TDD UL-DL additional configuration information.

The TDD UL-DL additional configuration information may include only UL or DL information for a specific symbol included in a specific slot among the plurality of first flexible resources transmitted in S1310.

The TDD UL-DL additional configuration information includes UL or DL information for the first symbol included in the first slot among the plurality of first flexible resources transmitted in S1310 and the second symbol adjacent to the first slot among the first flexible resources. It may include UL or DL information about the second symbol included in the slot.

The base station may transmit and receive signals based on the second semi-static TDD resource allocation information (S1330).

A signal from a user equipment (UE) based on the second semi-static TDD resource allocation information is received from the second device, or is forwarded to the terminal based on the second semi-static TDD resource allocation information. A signal can be transmitted to a second device.

The second semi-static TDD resource allocation information may be information in which one or more of the plurality of first flexible resources in the first semi-static TDD resource allocation information are updated based on TDD UL-DL additional configuration information.

The second semi-static TDD resource allocation information may include information of one or more second flexible resources, the one or more second flexible resources may be propagation delay between UL and DL, and the one or more second flexible resources may include a second flexible resource. Forwarding of signals by the device may not be performed.

If some of the first flexible resources included in the TDD resource allocation information transmitted in S1310 do not correspond to the TDD UL-DL additional configuration information transmitted in S1320, the first flexible resources that do not correspond to the TDD UL-DL additional configuration information Resources may be maintained as a second flexible resource in the second semi-static TDD resource allocation information.

The TDD UL-DL additional configuration information transmitted in S1310 includes only UL or DL information for a specific symbol included in a specific slot among the plurality of first flexible resources, and when the specific symbol is UL, the plurality of first flexible resources The second semi-static TDD resource allocation information is determined by updating all of the first flexible resources included in a specific slot among the resources to UL, and when the specific symbol is DL, it is allocated to a specific slot among the plurality of first flexible resources. The second semi-static TDD resource allocation information can be determined by updating all of the included first flexible resources to the DL.

The TDD UL-DL additional configuration information transmitted in S1310 includes UL or DL information for the first symbol included in the first slot among the plurality of first flexible resources and the second symbol adjacent to the first slot among the first flexible resources. Contains UL or DL information about the second symbol included in the slot, and when the first symbol and the second symbol are UL, the first flexible resource between the first symbol and the second symbol among the plurality of first flexible resources The second semi-static TDD resource allocation information is determined by updating all of the resources to UL, and when the first symbol and the second symbol are DL, between the first symbol and the second symbol among the plurality of first flexible resources The second semi-static TDD resource allocation information can be determined by updating all of the first flexible resources to the DL.

본 개시에 적용 가능한 통신 시스템Communication systems applicable to this disclosure

Referring to FIG. 14, the communication system 1 applied to various embodiments of the present disclosure includes a wireless device, a base station, and a network. Here, a wireless device refers to a device that performs communication using wireless access technology (e.g., 5G NR (New RAT), LTE (Long Term Evolution), 6G wireless communication), and includes communication/wireless/5G device/6G device. It may be referred to as . Although not limited thereto, wireless devices include robots (100a), vehicles (100b-1, 100b-2), XR (eXtended Reality) devices (100c), hand-held devices (100d), and home appliances (100e). ), IoT (Internet of Thing) device (100f), and AI device/server (400). For example, vehicles may include vehicles equipped with wireless communication functions, autonomous vehicles, vehicles capable of inter-vehicle communication, etc. Here, the vehicle may include an Unmanned Aerial Vehicle (UAV) (eg, a drone). XR devices include AR (Augmented Reality)/VR (Virtual Reality)/MR (Mixed Reality) devices, HMD (Head-Mounted Device), HUD (Head-Up Display) installed in vehicles, televisions, smartphones, It can be implemented in the form of computers, wearable devices, home appliances, digital signage, vehicles, robots, etc. Portable devices may include smartphones, smart pads, wearable devices (e.g., smartwatches, smart glasses), and computers (e.g., laptops, etc.). Home appliances may include TVs, refrigerators, washing machines, etc. IoT devices may include sensors, smart meters, etc. For example, a base station and network may also be implemented as wireless devices, and a specific wireless device 200a may operate as a base station/network node for other wireless devices.

Wireless devices 100a to 100f may be connected to the network 300 through the base station 200. AI (Artificial Intelligence) technology may be applied to wireless devices (100a to 100f), and the wireless devices (100a to 100f) may be connected to the AI server 400 through the network 300. The network 300 may be configured using a 3G network, 4G (eg, LTE) network, 5G (eg, NR) network, or 6G network. Wireless devices 100a to 100f may communicate with each other through the base station 200/network 300, but may also communicate directly (e.g. sidelink communication) without going through the base station/network. For example, vehicles 100b-1 and 100b-2 may communicate directly (e.g. V2V (Vehicle to Vehicle)/V2X (Vehicle to everything) communication). Additionally, an IoT device (eg, sensor) may communicate directly with another IoT device (eg, sensor) or another wireless device (100a to 100f).

Wireless communication/connection (150a, 150b, 150c) may be established between the wireless devices (100a to 100f)/base station (200) and the base station (200)/base station (200). Here, wireless communication/connection includes various wireless connections such as uplink/downlink communication (150a), sidelink communication (150b) (or D2D communication), and inter-base station communication (150c) (e.g. relay, IAB (Integrated Access Backhaul)). This can be achieved through technology (e.g., 5G NR). Through wireless communication/connection (150a, 150b, 150c), a wireless device and a base station/wireless device, and a base station and a base station can transmit/receive wireless signals to each other. Example For example, wireless communication/connection (150a, 150b, 150c) can transmit/receive signals through various physical channels. To this end, based on various proposals of various embodiments of the present disclosure, transmission of wireless signals /At least some of various configuration information setting processes for reception, various signal processing processes (e.g., channel encoding/decoding, modulation/demodulation, resource mapping/demapping, etc.), resource allocation processes, etc. may be performed.

본 개시에 적용 가능한 무선 기기Wireless devices applicable to this disclosure

Below, examples of wireless devices to which various embodiments of the present disclosure are applied will be described.

Referring to FIG. 15, the first wireless device 100 and the second wireless device 200 can transmit and receive wireless signals through various wireless access technologies (eg, LTE, NR). Here, {first wireless device 100, second wireless device 200} refers to {wireless device 100x, base station 200} and/or {wireless device 100x, wireless device 100x) in FIG. 14. } can be responded to.

The first wireless device 100 includes one or more processors 102 and one or more memories 104, and may additionally include one or more transceivers 106 and/or one or more antennas 108. Processor 102 controls memory 104 and/or transceiver 106 and may be configured to implement the descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed herein. For example, the processor 102 may process information in the memory 104 to generate first information/signal and then transmit a wireless signal including the first information/signal through the transceiver 106. Additionally, the processor 102 may receive a wireless signal including the second information/signal through the transceiver 106 and then store information obtained from signal processing of the second information/signal in the memory 104. The memory 104 may be connected to the processor 102 and may store various information related to the operation of the processor 102. For example, memory 104 may perform some or all of the processes controlled by processor 102 or instructions for performing the descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed herein. Software code containing them can be stored. Here, the processor 102 and memory 104 may be part of a communication modem/circuit/chip designed to implement wireless communication technology (eg, LTE, NR). Transceiver 106 may be coupled to processor 102 and may transmit and/or receive wireless signals via one or more antennas 108. Transceiver 106 may include a transmitter and/or receiver. The transceiver 106 can be used interchangeably with an RF (Radio Frequency) unit. In various embodiments of the present disclosure, a wireless device may mean a communication modem/circuit/chip.

The second wireless device 200 includes one or more processors 202, one or more memories 204, and may further include one or more transceivers 206 and/or one or more antennas 208. Processor 202 controls memory 204 and/or transceiver 206 and may be configured to implement the descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed herein. For example, the processor 202 may process the information in the memory 204 to generate third information/signal and then transmit a wireless signal including the third information/signal through the transceiver 206. Additionally, the processor 202 may receive a wireless signal including the fourth information/signal through the transceiver 206 and then store information obtained from signal processing of the fourth information/signal in the memory 204. The memory 204 may be connected to the processor 202 and may store various information related to the operation of the processor 202. For example, memory 204 may perform some or all of the processes controlled by processor 202 or instructions for performing the descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed herein. Software code containing them can be stored. Here, the processor 202 and memory 204 may be part of a communication modem/circuit/chip designed to implement wireless communication technology (eg, LTE, NR). Transceiver 206 may be coupled to processor 202 and may transmit and/or receive wireless signals via one or more antennas 208. Transceiver 206 may include a transmitter and/or receiver. Transceiver 206 may be used interchangeably with an RF unit. In various embodiments of the present disclosure, a wireless device may mean a communication modem/circuit/chip.

Hereinafter, the hardware elements of the

wireless devices

100 and 200 will be described in more detail. Although not limited thereto, one or more protocol layers may be implemented by one or

more processors

102, 202. For example, one or

more processors

102, 202 may implement one or more layers (e.g., functional layers such as PHY, MAC, RLC, PDCP, RRC, SDAP). One or

more processors

102, 202 may generate one or more Protocol Data Units (PDUs) and/or one or more Service Data Units (SDUs) according to the descriptions, functions, procedures, suggestions, methods and/or operational flow charts disclosed herein. can be created. One or

more processors

102, 202 may generate messages, control information, data or information according to the descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed herein. One or

more processors

102, 202 generate signals (e.g., baseband signals) containing PDUs, SDUs, messages, control information, data or information according to the functions, procedures, proposals and/or methods disclosed herein. , can be provided to one or more transceivers (106, 206). One or

more processors

102, 202 may receive signals (e.g., baseband signals) from one or

more transceivers

106, 206, and the descriptions, functions, procedures, suggestions, methods, and/or operational flowcharts disclosed herein. Depending on the device, PDU, SDU, message, control information, data or information can be obtained.

One or

more processors

102, 202 may be referred to as a controller, microcontroller, microprocessor, or microcomputer. One or

more processors

102, 202 may be implemented by hardware, firmware, software, or a combination thereof. As an example, one or more Application Specific Integrated Circuits (ASICs), one or more Digital Signal Processors (DSPs), one or more Digital Signal Processing Devices (DSPDs), one or more Programmable Logic Devices (PLDs), or one or more Field Programmable Gate Arrays (FPGAs) May be included in one or

more processors

102 and 202. The descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed in this document may be implemented using firmware or software, and the firmware or software may be implemented to include modules, procedures, functions, etc. Firmware or software configured to perform the descriptions, functions, procedures, suggestions, methods, and/or operational flowcharts disclosed in this document may be included in one or more processors (102, 202) or stored in one or more memories (104, 204). It may be driven by the

above processors

102 and 202. The descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed in this document may be implemented using firmware or software in the form of codes, instructions and/or sets of instructions.

One or

more memories

104, 204 may be connected to one or

more processors

102, 202 and may store various types of data, signals, messages, information, programs, codes, instructions, and/or instructions. One or

more memories

104, 204 may consist of ROM, RAM, EPROM, flash memory, hard drives, registers, cache memory, computer readable storage media, and/or combinations thereof. One or

more memories

104, 204 may be located internal to and/or external to one or

more processors

102, 202. Additionally, one or

more memories

104, 204 may be connected to one or

more processors

102, 202 through various technologies, such as wired or wireless connections.

One or

more transceivers

106, 206 may transmit user data, control information, wireless signals/channels, etc. mentioned in the methods and/or operational flowcharts of this document to one or more other devices. One or

more transceivers

106, 206 may receive user data, control information, wireless signals/channels, etc. referred to in the descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed herein, etc. from one or more other devices. there is. For example, one or

more transceivers

106 and 206 may be connected to one or

more processors

102 and 202 and may transmit and receive wireless signals. For example, one or

more processors

102, 202 may control one or

more transceivers

106, 206 to transmit user data, control information, or wireless signals to one or more other devices. Additionally, one or

more processors

102, 202 may control one or

more transceivers

106, 206 to receive user data, control information, or wireless signals from one or more other devices. In addition, one or more transceivers (106, 206) may be connected to one or more antennas (108, 208), and one or more transceivers (106, 206) may be connected to the description and functions disclosed in this document through one or more antennas (108, 208). , may be set to transmit and receive user data, control information, wireless signals/channels, etc. mentioned in procedures, proposals, methods and/or operation flow charts, etc. In this document, one or more antennas may be multiple physical antennas or multiple logical antennas (eg, antenna ports). One or more transceivers (106, 206) process the received user data, control information, wireless signals/channels, etc. using one or more processors (102, 202), and convert the received wireless signals/channels, etc. from the RF band signal. It can be converted to a baseband signal. One or more transceivers (106, 206) may convert user data, control information, wireless signals/channels, etc. processed using one or more processors (102, 202) from baseband signals to RF band signals. For this purpose, one or

more transceivers

106, 206 may comprise (analog) oscillators and/or filters.

16, the wireless device may include at least one processor (102, 202), at least one memory (104, 204), at least one transceiver (106, 206), and one or more antennas (108, 208). You can.

As a difference between the example of the wireless device previously described in FIG. 15 and the example of the wireless device in FIG. 16, in FIG. 15 the

processors

102 and 202 and the

memories

104 and 204 are separated, but in the example of FIG. 16, the processor The point is that memories (104, 204) are included in (102, 202).

Here, specific descriptions of the

processors

102 and 202,

memories

104 and 204,

transceivers

106 and 206, and one or

more antennas

108 and 208 are as described above, so to avoid unnecessary repetition of description, Repeated descriptions should be omitted.

Below, an example of a signal processing circuit to which various embodiments of the present disclosure are applied will be described.

17 illustrates a signal processing circuit for a transmission signal.

Referring to FIG. 17, the signal processing circuit 1000 may include a scrambler 1010, a modulator 1020, a layer mapper 1030, a precoder 1040, a resource mapper 1050, and a signal generator 1060. there is. Although not limited thereto, the operations/functions of FIG. 17 may be performed in the

processors

102, 202 and/or

transceivers

106, 206 of FIG. 15. The hardware elements of Figure 17 may be implemented in the

processors

102, 202 and/or

transceivers

106, 206 of Figure 15. For example, blocks 1010 to 1060 may be implemented in

processors

102 and 202 of FIG. 15 . Additionally, blocks 1010 to 1050 may be implemented in the

processors

102 and 202 of FIG. 15, and block 1060 may be implemented in the

transceivers

106 and 206 of FIG. 15.

The codeword can be converted into a wireless signal through the signal processing circuit 1000 of FIG. 17. Here, a codeword is an encoded bit sequence of an information block. The information block may include a transport block (eg, UL-SCH transport block, DL-SCH transport block). Wireless signals may be transmitted through various physical channels (eg, PUSCH, PDSCH).

Specifically, the codeword may be converted into a scrambled bit sequence by the scrambler 1010. The scramble sequence used for scrambling is generated based on an initialization value, and the initialization value may include ID information of the wireless device. The scrambled bit sequence may be modulated into a modulation symbol sequence by the modulator 1020. Modulation methods may include pi/2-BPSK (pi/2-Binary Phase Shift Keying), m-PSK (m-Phase Shift Keying), m-QAM (m-Quadrature Amplitude Modulation), etc. The complex modulation symbol sequence may be mapped to one or more transport layers by the layer mapper 1030. The modulation symbols of each transport layer may be mapped to the corresponding antenna port(s) by the precoder 1040 (precoding). The output z of the precoder 1040 can be obtained by multiplying the output y of the layer mapper 1030 with the precoding matrix W of N*M. Here, N is the number of antenna ports and M is the number of transport layers. Here, the precoder 1040 may perform precoding after performing transform precoding (eg, DFT transformation) on complex modulation symbols. Additionally, the precoder 1040 may perform precoding without performing transform precoding.

The resource mapper 1050 can map the modulation symbols of each antenna port to time-frequency resources. A time-frequency resource may include a plurality of symbols (eg, CP-OFDMA symbol, DFT-s-OFDMA symbol) in the time domain and a plurality of subcarriers in the frequency domain. The signal generator 1060 generates a wireless signal from the mapped modulation symbols, and the generated wireless signal can be transmitted to another device through each antenna. For this purpose, the signal generator 1060 may include an Inverse Fast Fourier Transform (IFFT) module, a Cyclic Prefix (CP) inserter, a Digital-to-Analog Converter (DAC), a frequency uplink converter, etc. .

The signal processing process for the received signal in the wireless device may be configured as the reverse of the signal processing process (1010 to 1060) of FIG. 17. For example, a wireless device (eg, 100 and 200 in FIG. 15) may receive a wireless signal from the outside through an antenna port/transceiver. The received wireless signal can be converted into a baseband signal through a signal restorer. To this end, the signal restorer may include a frequency downlink converter, an analog-to-digital converter (ADC), a CP remover, and a Fast Fourier Transform (FFT) module. Afterwards, the baseband signal can be restored to a codeword through a resource de-mapper process, postcoding process, demodulation process, and de-scramble process. The codeword can be restored to the original information block through decoding. Accordingly, a signal processing circuit (not shown) for a received signal may include a signal restorer, resource de-mapper, postcoder, demodulator, de-scrambler, and decoder.

Figure 18 is an example of a wireless communication device applicable to the present disclosure.

Referring to FIG. 18, a wireless communication device, for example, a terminal, includes a processor 2310 such as a digital signal processor (DSP) or microprocessor, a transceiver 2335, a power management module 2305, and an antenna ( 2340), battery 2355, display 2315, keypad 2320, GPS (Global Positioning System) chip 2360, sensor 2365, memory 2330, SIM (Subscriber Identification Module) card (2325), It may include at least one of a speaker 2345 and a microphone 2350. There may be a plurality of antennas and processors.

Processor 2310 may implement the functions, procedures, and methods described in this specification. The processor 2310 of FIG. 18 may be the

processors

102 and 202 of FIG. 16 .

The memory 2330 is connected to the processor 2310 and stores information related to the operation of the processor. Memory may be located internally or externally to the processor and may be connected to the processor through various technologies, such as wired or wireless connections. The memory 2330 of FIG. 18 may be the memories 104 and 24 of FIG. 16 .

The user can input various types of information, such as a phone number, using various techniques, such as pressing a button on the keypad 2320 or activating sound using the microphone 2350. The processor 2310 may receive and process user information and perform appropriate functions, such as calling the entered phone number. In some scenarios, data may be retrieved from SIM card 2325 or memory 2330 to perform the appropriate function. In some scenarios, processor 2310 may display various types of information and data on display 2315 for the user's convenience.

The transceiver 2335 is connected to the processor 2310 and transmits and/or receives wireless signals such as RF (Radio Frequency) signals. The processor may control the transceiver to initiate communication or transmit wireless signals containing various types of information or data, such as voice communication data. A transceiver includes a transmitter and a receiver for transmitting and receiving wireless signals. Antenna 2340 can facilitate transmission and reception of wireless signals. In some implementations, upon receiving a wireless signal, the transceiver may forward and convert the signal to a baseband frequency for processing by a processor. The processed signal may be processed by various techniques, such as being converted into audible or readable information to be output through speaker 2345. The transceiver of FIG. 18 may be the transceiver (106, 206) of FIG. 16.

Although not shown in FIG. 18, various components such as a camera and USB (Universal Serial Bus) port may be additionally included in the terminal. For example, a camera may be connected to the processor 2310.

Figure 18 is only one implementation example for a terminal, and the implementation example is not limited thereto. The terminal does not necessarily include all the elements of FIG. 18. That is, some components, such as the keypad 2320, GPS (Global Positioning System) chip 2360, sensor 2365, SIM card 2325, etc., may not be essential elements and in this case, are not included in the terminal. Maybe not.

The embodiments described above are those in which the components and features of the present invention are combined in a predetermined form. Each component or feature should be considered optional unless explicitly stated otherwise. Each component or feature may be implemented in a form that is not combined with other components or features. Additionally, it is also possible to configure an embodiment of the present invention by combining some components and/or features. The order of operations described in embodiments of the present invention may be changed. Some features or features of one embodiment may be included in other embodiments or may be replaced with corresponding features or features of other embodiments. It is obvious that claims that do not have an explicit reference relationship in the patent claims can be combined to form an embodiment or included as a new claim through amendment after filing.

Certain operations described in this document as being performed by the base station may, in some cases, be performed by its upper node. That is, it is obvious that in a network comprised of a plurality of network nodes including a base station, various operations performed for communication with a terminal can be performed by the base station or other network nodes other than the base station. Base station can be replaced by terms such as fixed station, Node B, eNode B (eNB), and access point.

Embodiments according to the present invention may be implemented by various means, for example, hardware, firmware, software, or a combination thereof. In the case of implementation by hardware, an embodiment of the present invention includes one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), and FPGAs ( It can be implemented by field programmable gate arrays, processors, controllers, microcontrollers, microprocessors, etc.

In the case of implementation by firmware or software, an embodiment of the present invention may be implemented in the form of a module, procedure, function, etc. that performs the functions or operations described above. Software code can be stored in a memory unit and run by a processor. The memory unit is located inside or outside the processor and can exchange data with the processor through various known means.

Meanwhile, this specification describes embodiments of the present invention using an LTE system, LTE-A system, and NR system, but this is an example and embodiments of the present invention can be applied to any communication system that falls under the above definition.

Additionally, in this specification, specific operations described in this document as being performed by a base station may, in some cases, be performed by its upper node. That is, it is obvious that in a network comprised of a plurality of network nodes including a base station, various operations performed for communication with a terminal can be performed by the base station or other network nodes other than the base station. Base station can be replaced by terms such as fixed station, Node B, eNode B (eNB), and access point, and the names of base stations are remote radio head (RRH), eNB, and transmission point (TP). ), RP (reception point), relay, etc. can be used as a comprehensive term.

It is obvious to those skilled in the art that the present invention can be embodied in other specific forms without departing from the characteristics of the present invention. Accordingly, the above detailed description should not be construed as restrictive in all respects and should be considered illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention.

Claims

A method of operating an electronic device in a wireless communication system, wherein the electronic device includes a first device and a second device,

First semi-static TDD resource allocation information (semi-static time division) including a plurality of first flexible resources that are not allocated to UL (uplink) or DL (downlink) from the base station by the first device receiving duplex resource allocation information;

Receiving TDD UL-DL additional configuration information from a base station by the first device;

By the second device, based on the TDD UL-DL additional configuration information, one or more of the plurality of first flexible resources in the first semi-static TDD resource allocation information is updated to perform a second semi-static determining TDD resource allocation information; and

By the second device, based on the second semi-static TDD resource allocation information, a signal from the base station is forwarded to a user equipment (UE), or a signal from the terminal is forwarded to the user equipment (UE). A method comprising forwarding to a base station.
According to claim 1,

The TDD UL-DL additional configuration information includes dynamic TDD UL-DL configuration information (dynamic TDD uplink-downlink configuration information) to be applied to the first device,

The TDD UL-DL additional configuration information is received through control information for the first device, or

The TDD UL-DL additional configuration information is received through scheduling information for the first device.
According to claim 1,

The second semi-static TDD resource allocation information includes information on one or more second flexible resources,

The one or more second flexible resources are propagation delays between UL and DL, and forwarding of a signal by the second device is not performed in the one or more second flexible resources.
According to claim 1,

The TDD UL-DL additional configuration information includes dynamic TDD UL-DL configuration information (dynamic TDD uplink-downlink configuration information) to be applied to the first device,

The second semi-static TDD resource allocation information includes information on one or more second flexible resources,

The one or more second flexible resources are propagation delays between UL and DL, and forwarding of a signal by the second device is not performed in the one or more second flexible resources.
According to claim 1,

One or more of the plurality of first flexible resources in the first semi-static TDD resource allocation information is updated to be the same as one or more resources in the TDD UL-DL additional configuration information, so that the second semi-static TDD resource allocation information determined, method.
According to claim 1,

A resource that does not correspond to the TDD UL-DL additional configuration information among the plurality of first flexible resources is maintained as a second flexible resource in the second semi-static TDD resource allocation information.
According to claim 1,

The TDD UL-DL additional configuration information includes only UL or DL information for a specific symbol included in a specific slot among the plurality of first flexible resources,

When the specific symbol is UL, the second semi-static TDD resource allocation information is determined by updating all first flexible resources included in the specific slot among the plurality of first flexible resources to UL,

When the specific symbol is DL, the second semi-static TDD resource allocation information is determined by updating all first flexible resources included in the specific slot among the plurality of first flexible resources to DL.
According to claim 1,

The TDD UL-DL additional configuration information includes UL or DL information for the first symbol included in the first slot among the plurality of first flexible resources and a second slot adjacent to the first slot among the plurality of first flexible resources. Contains information of UL or DL about the second symbol included in,

When the first symbol and the second symbol are UL, all first flexible resources between the first symbol and the second symbol among the plurality of first flexible resources are updated to UL, thereby providing the second semi- Static TDD resource allocation information is determined,

When the first symbol and the second symbol are DL, all first flexible resources between the first symbol and the second symbol among the plurality of first flexible resources are updated to DL, thereby providing the second semi- How static TDD resource allocation information is determined.
According to claim 1,

When the second semi-static TDD resource allocation information to be applied to the second device is different from the third semi-static TDD resource allocation information to be applied to the first device

Based on the third semi-static TDD resource allocation information, transmission and reception of signals by the first device and transmission and reception of signals by the second device are performed.
According to claim 1,

When the second semi-static TDD resource allocation information to be applied to the second device is different from the third semi-static TDD resource allocation information to be applied to the first device,

Based on the second semi-static TDD resource allocation information, transmission and reception of signals by the first device and transmission and reception of signals by the second device are performed.
In a method of operating a base station in a wireless communication system,

A first semi-static device of an electronic device including a first device and a second device, including a plurality of first flexible resources that are not allocated as UL (uplink) or DL (downlink) to the first device. Transmitting TDD resource allocation information (semi-static time division duplex resource allocation information);

Transmitting TDD UL-DL additional configuration information to the first device; and

It includes forwarding and receiving a signal from a user equipment (UE) based on second semi-static TDD resource allocation information from the second device, or receiving a signal to be forwarded to the terminal from the second device. Including the step of transmitting to,

The second semi-static TDD resource allocation information is information in which one or more of the plurality of first flexible resources in the first semi-static TDD resource allocation information are updated based on the TDD UL-DL additional configuration information. , method.
According to claim 11,

The TDD UL-DL additional configuration information is dynamic TDD UL-DL configuration information (dynamic TDD uplink-downlink configuration information) to be applied to the first device,

The TDD UL-DL additional configuration information is received through control information for the first device, or

The TDD UL-DL additional configuration information is received through scheduling information for the first device.
According to claim 11,

The second semi-static TDD resource allocation information includes information on one or more second flexible resources,

The one or more second flexible resources are propagation delays between UL and DL, and forwarding of a signal by the second device is not performed in the one or more second flexible resources.
According to claim 11,

One or more of the plurality of first flexible resources in the first semi-static TDD resource allocation information is updated to be the same as one or more resources in the TDD UL-DL additional configuration information, so that the second semi-static TDD resource allocation information determined, method.
According to claim 11,

A resource that does not correspond to the TDD UL-DL additional configuration information among the plurality of first flexible resources is maintained as a second flexible resource in the second semi-static TDD resource allocation information.
According to claim 11,

The TDD UL-DL additional configuration information includes only UL or DL information for a specific symbol included in a specific slot among the plurality of first flexible resources,

When the specific symbol is UL, the second semi-static TDD resource allocation information is determined by updating all first flexible resources included in the specific slot among the plurality of first flexible resources to UL,

When the specific symbol is DL, the second semi-static TDD resource allocation information is determined by updating all first flexible resources included in the specific slot among the plurality of first flexible resources to DL.
In electronic devices in communication systems,

A first device comprising a first transceiver;

a second device comprising a second transceiver;

at least one processor; and

at least one memory operably connectable to the at least one processor and storing instructions that, when executed by the at least one processor, perform operations;

The above operations are,

An electronic device comprising all steps of the method according to any one of claims 1 to 10.
In a base station in a communication system,

transceiver;

at least one processor; and

at least one memory operably connectable to the at least one processor and storing instructions that, when executed by the at least one processor, perform operations;

The above operations are,

A base station comprising all steps of the method according to any one of claims 11 to 16.
In a control device for controlling electronic devices in a communication system,

at least one processor; and

At least one memory operably connected to the at least one processor,

The at least one memory stores instructions to perform operations based on execution by the at least one processor,

The above operations are,

Comprising all steps of the method according to any one of claims 1 to 10,

controller.
In one or more non-transitory computer-readable media storing one or more instructions,

the one or more instructions perform operations based on execution by one or more processors;

The above operations are,

Comprising all steps of the method according to any one of claims 1 to 10,

Computer-readable media.